CN115519166A

CN115519166A - Automatic profiling edge milling machine

Info

Publication number: CN115519166A
Application number: CN202110707160.XA
Authority: CN
Inventors: 朱占年
Original assignee: Dongguan Chuangtu Technology Co ltd
Current assignee: Dongguan Chuangtu Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-12-27

Abstract

The invention provides an automatic profiling edge milling machine, which realizes the reliable fixation of a template and a workpiece to be machined by selecting a pressing cylinder and rotating the pressing cylinder to fix the template and the workpiece to be machined and driving the tail end of a profiling bionic rod assembly to be abutted against the template by a pulling cylinder; the upper and lower and front and rear positions of the profiling rod can be adjusted through the matching of the screw thread and the nut at the rear end of the profiling bionic rod assembly, the angle adjustment of the milling cutter can be realized through the arc-shaped hole in the second fixing plate, and the comprehensive adjustment of the machining process can be realized through the matching of the milling cutter and the arc-shaped hole; different types of designs at the front end of the profiling positioning rod device can meet the processing requirements of templates with different shapes and types; meanwhile, the metal chips after cutting can be collected and recycled, and the environment is protected.

Description

Automatic profiling edge milling machine

Technical Field

The invention relates to the field of die casting machining, in particular to the field of profiling machining.

Background

In industrial production, after a pouring gate and a slag ladle of a die casting are removed, a plurality of convex sections exist, and appearance problems such as flash, burrs, cracks and the like exist in the appearance profile. And (4) milling the milling cutter rotating at a high speed by profiling, cutting off redundant parts, and processing a smooth appearance surface.

The die casting generally has low requirements on the precision of the appearance dimension, and the appearance contour is smooth and flat. Therefore, the die casting produced by the die casting machine die generally removes the sprue and the slag ladle, and then processes the appearance problems of the die casting, such as bulged sections, flash, burrs, cracks and the like. After the die casting is punched and trimmed by a punch die, the section of the die casting is still rough, and the requirements on the surface roughness of subsequent procedures such as paint baking, electroplating, anode and the like cannot be met.

In actual production, a small round die casting is generally machined by a numerical control machine; to the die casting that the appearance profile is square, polygon or irregular appearance, because its itself generally has the drawing of patterns inclination, it is higher with CNC processing cost, the mill more adopts artifical the grinding to process, its essential process flow includes: the pouring gate position is polished and leveled by an edge grinding machine, and then other positions are polished and leveled by a small polishing tool manually. The traditional process flow has the outstanding problems of low production efficiency, high cost and the like. Some factories also adopt robots to polish, and although the production efficiency is improved to a certain extent, the application of the robots also aggravates the operation cost of enterprises and has the problem of dust pollution.

Disclosure of Invention

Aiming at the problems, the invention provides equipment for replacing manual grinding by an automatic profiling edge milling machine. The die casting pouring gate and the convex section of the slag ladle, flash, burrs, cracks and the like are cut by the milling cutter rotating at a high speed, a smooth and flat appearance surface is processed, manual polishing is replaced, and the working efficiency is improved; the product without punching is directly processed by a profiling edge milling machine, so that the use of a punch can be saved. Meanwhile, the metal chips after cutting can be collected and recycled, and the environment is protected.

The technical scheme for solving the technical problem is as follows:

the utility model provides an automatic profiling profile modeling edge milling machine, retrieves the subassembly, its characterized in that including installation fixed subassembly, contour machining subassembly, control assembly and cooling: the installation and fixation assembly comprises a down-pressing cylinder, a portal frame, a rotary down-pressing cylinder, a working panel, a structural frame, a flange bearing seat, a rotary shaft, a pulling cylinder, a brake motor with a gearbox, a belt pulley, a cam and a supporting plate, wherein the structural frame comprises four stand columns, a horizontal rectangular frame and two supporting legs; the profiling machining assembly comprises a profiling positioning rod device, a first fixing plate, a lifting regulator, a stand column with a rack, a cross beam, a balance weight, a second fixing plate, a spindle motor, a coupler, a spindle, a cutter handle chuck, a milling cutter, a connecting handle and a mounting plate; the lifting adjuster is fixedly installed with a supporting plate provided with a fixing component through an installation plate, the lifting adjuster can drive an upright post with a rack to move up and down, a cross beam is installed at the top end of the upright post with the rack, a balance weight is installed at one end of the cross beam, a first fixing plate is fixedly installed at the other end of the cross beam, a circular through hole is formed in the upper end of the first fixing plate, threaded holes are formed in the periphery of the circular through hole, the circle center of each threaded hole is located on the same circle taking the circle center of the circular through hole as the circle center, a long hole is formed in the lower end of the first fixing plate, a profiling positioning rod device is installed on the first fixing plate through the long hole, a second fixing plate is installed above the first fixing plate, a spindle motor, a spindle and a tool shank chuck are installed on the second fixing plate, the spindle motor drives the spindle and the tool shank chuck to rotate through a coupler, a milling cutter is installed on a tool shank chuck, and two sides of the rear end in the profiling positioning rod device are parallelly milled out of a plane and are provided with nuts; the connecting handle is arranged on one side close to the tool holder chuck below the cross beam and connected with a pull ring for pulling a piston rod of the cylinder; the control component is arranged on the outer side of the working panel; the cooling recovery assembly is arranged below the horizontal rectangular frame.

Preferably, the control assembly comprises a limit switch, a photoelectric protection switch, a start button, an emergency stop button and a control electric box, wherein the start button and the emergency stop button are arranged on the working panel, and the control electric box is fixedly connected with or externally connected to the side face of the working panel in a wire manner; the limit switch is arranged below the working panel and is matched with the cam to complete the counting of the working period.

Preferably, the cooling recovery assembly comprises a water tank, a water pump and a scrap collecting hopper, rollers are arranged below the water tank, coolant in the water pump is pumped by the water pump to cool the milling cutter in the working state, the coolant with metal scraps is filtered by a filter screen of the scrap collecting hopper, the coolant enters the water tank again for cyclic utilization, and the scrap collecting hopper collects and processes the metal scraps generated for recycling.

Preferably, the connecting hole on the second fixing plate is a concentric arc-shaped hole, the back of the second fixing plate is provided with a fixed rotating shaft, the fixed rotating shaft is located at the circle center of the concentric arc-shaped hole, and the fixed rotating shaft is matched with the circular through hole at the upper end of the first fixing plate, so that the second fixing plate can rotate along the fixed rotating shaft.

Preferably, the control device further comprises a control box, a liquid crystal display screen is arranged on the control box, and a control circuit in the control box is controlled by a PLC program.

Preferably, a waterproof bearing is arranged in the front end rod of the profiling positioning rod device, and clamp springs are arranged at two ends of the bearing for positioning.

Preferably, the front end of the profiling positioning device is provided with a bolt bearing or a shaft mounting bearing.

Preferably, a waterproof bearing is arranged in a front end rod of the profiling positioning device, and an outer ring of the bearing protrudes out of the front surface, the left surface and the right surface.

Compared with the prior art, the invention has the following advantages:

1. simple structure and reasonable design. The template of the profiling edge milling machine and the workpiece to be machined are simple to install; the profiling rod device and the milling cutter work in a matched mode, so that the efficiency is high; the compressible characteristic of make full use of gas chooses for use the cylinder fixed die board and treats the machined part to with pulling cylinder drive the bionic pole subassembly of profiling end by close template.

2. Convenient adjustment and strong adaptability. The upper and lower and front and rear positions of the profiling rod can be adjusted by matching the rear end of the profiling bionic rod component with a screw thread and a nut, the angle adjustment of the milling cutter can be realized by the arc-shaped hole on the second fixing plate, and the comprehensive adjustment of the machining process can be realized by matching the profiling bionic rod component with the arc-shaped hole; the different types of designs of the front end of the profiling positioning rod device can meet the processing requirements of templates with different shapes and types, and the overall adaptability is greatly improved compared with the prior art.

3. Can realize automatic and continuous processing. The control assembly can realize automatic processing after the fixed template and the assembly to be processed are fixed, and the cooling recovery assembly can realize the cooling of the milling cutter in the processing process.

4. The method is green and environment-friendly and has good economical efficiency. The cooling and recycling assembly can recycle the processed metal chips, and air mixed with the chips in the processing process is reduced, so that the cooling and recycling assembly is green and environment-friendly and has good economical efficiency.

Drawings

FIG. 1 is a perspective view of the whole

FIG. 2 is a mounting fixture assembly

FIG. 3 is a partial enlargement of the mounting fixture assembly

FIG. 4 is a front side of the master profile assembly

FIG. 5 is a rear side of the master profile assembly

FIG. 6 shows a control device and a cooling recovery device

FIG. 7 is a schematic view of the connection handle to the pull cylinder

FIG. 8 is a front end of an A-shaped copying positioning rod device

FIG. 9 shows the front end of a B-type copying positioning rod device

FIG. 10 shows the front end of a C-shaped profile modeling positioning rod device

FIG. 11 is a schematic view of the connection of the control box

FIG. 12 is a schematic view of the first and second fixing plates

FIG. 13 is a rear view of the first and second fixing plates

Reference numerals: the device comprises a mounting and fixing assembly 1, a profiling machining assembly 2, a control assembly 3, a cooling and recycling assembly 4, a down-pressing cylinder 101, a portal frame 102, a rotating down-pressing cylinder 103, a working panel 104, a structural frame 105, a flange bearing seat 106, a rotating shaft 107, a pulling cylinder 108, a brake motor 109 with a gearbox, a belt 110, a belt pulley 111, a cam 112, a supporting plate 113, a profiling positioning rod device 201, a first fixing plate 202, a lifting adjuster 203, a vertical column 204 with a rack, a cross beam 205, a counterweight 206, a second fixing plate 207, a spindle motor 208, a coupling 209, a spindle 210, a tool shank chuck 211, a milling cutter 212, a connecting handle 213, a mounting plate 214, a limit switch 301, a photoelectric protection switch 302, a starting button 303, an emergency stop button 304, a control electric box 305, a liquid crystal display 306, a water tank 401, a water pump 402 and a chip collecting bucket 403.

Detailed Description

The embodiments of the present invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1-3, before die casting products are processed in batch, a template is mounted on a platform of a rotating shaft 107, a positioning device for preventing the products from moving is arranged on the template, the outline size of the template is the same as the outline size of the processed products, and the same-scale scaling can be realized by adjusting the position or the angle of a profiling positioning rod device 201. The casting to be processed is placed above the template, the lifting adjuster 203 is adjusted to enable the height of the milling cutter 212 and the die casting to be in proper positions, the circular rotating shaft at the front end of the profiling positioning rod device 201 is in close contact with the outer edge of the template, the inclination angle of the second fixing plate 202 is adjusted, and the profile inclination of the milling cutter 212 and the casting to be processed is kept consistent. The lower air cylinder 101 arranged on the portal frame 102 and the rotary lower air cylinder 103 arranged on the working panel 104 are used for pressing products, the lower air cylinder 101 or the rotary lower air cylinder 103 is reasonably selected to be used, namely, the product with larger appearance uses the lower air cylinder 101, and conversely, the product with smaller appearance uses the rotary lower air cylinder 103.

The rotating shaft 107 and the flange bearing seat 106 are installed together, a framework oil seal is installed on the rotating shaft, the framework oil seal is dustproof and waterproof, and a bearing is installed inside the rotating shaft and connected with the framework oil seal. The rotating shaft 107 penetrates through the flange bearing seat 106, the upper end of the rotating shaft is higher than the flange plane, a screw hole is formed in the rotating shaft, and a positioning shaft protrudes from the center of the rotating shaft, so that a template can be conveniently installed. The lower end penetrating part is provided with a cam 112 and a pulley 111. The brake motor 109 with the gearbox drives the rotating shaft 107 to rotate through the belt 110 and the belt pulley 111, and the limit switch 301 is touched by the cam 112 once every time the rotating shaft rotates for one circle.

As shown in fig. 4-5, the contact surface between the front end surface of the profiling positioning rod device 201 and the outer edge of the template is round or spherical, the front end of the profiling positioning rod device is provided with a bearing, two sides of the bearing are provided with snap springs, the inner ring of the bearing is provided with a shaft, the middle and rear end parts of the bearing are provided with threads and nuts for adjustment, two sides of the bearing are milled with planes in parallel, the bearing is assembled and fixed in a strip hole of the first fixing plate 202 and can be adjusted up and down and back and forth, the surface of the profiling positioning rod device 201 abuts against the outer edge of the template, when the template rotates, the front end surface abuts against the outer edge surface of the template to roll or slide, and a milling cutter rotating at high speed keeps the same motion track with the surface.

The lower end of the first fixing plate 202 is provided with a long hole, the upper end of the first fixing plate is arranged at one end of the cross beam 205, a circular through hole is arranged in the center of the first fixing plate, a bearing sleeve is arranged in the through hole, and screw holes are formed in the periphery of the through hole. There is a locating shaft second fixed plate 207 lower end back, has the arc hole around the axle, and second fixed plate 207 installs on first fixed plate 202, adjustable certain angle, installs profile modeling locating lever device 201 on first fixed plate 202. The second fixing plate 207 is provided with a spindle motor 208, a coupling 209, a spindle 210, a shank holder 211, and a milling cutter 212.

Referring to fig. 6, the copying burr milling machine is provided with a water tank 401, a water pump 402, a scrap collecting hopper 403, and the scrap collecting hopper 403 is used for collecting metal scraps. The machined metal chips are washed away by the cooling liquid and collected by the chip collecting hopper 403, and the cooling liquid flows into the water tank 401 for recycling.

As shown in FIG. 7, a weight 206 is installed on the other end of the cross beam 205, the upper end of the vertical column 204 with rack is connected with the cross beam 205 by a bearing, the lower end is connected with the lifting adjuster 203, and a connecting handle 213 is installed on the cross beam 205 and connected with a ring on the top of the piston rod of the pulling cylinder 108.

The front end of the profiling positioning rod device 201 of the invention has three types of shapes in a round or spherical shape.

As shown in figure 8, a waterproof bearing is arranged in the A-shaped front end rod, and clamping springs are arranged at two ends of the bearing for positioning. The diameter of the extending part of the bearing shaft is relatively small, the outer diameter of the shaft is tightly close to the outer edge of the template, and the processing of the outline is complex, for example, the product with more concave-convex parts and smaller R angle is processed.

As shown in fig. 9, the front end of the b-shape is provided with a bolt bearing or a bearing arranged on the shaft. The excircle of the bearing is abutted against the outer edge of the template, and the processing shape is more regular, such as square, round and regular polygonal products.

As shown in FIG. 10, a waterproof bearing is installed in the C-shaped front end rod, and the outer ring of the bearing protrudes out of the front surface, the left surface and the right surface, so that the outer circular surface of the bearing is abutted against the outer edge of the template, and a product with the diameter smaller than that of the rotating shaft 107 is processed.

As shown in fig. 11, the control device of the present invention may be provided with a control box 305, on which a liquid crystal display 306 is provided, and a control circuit in the control box performs processing control using a PLC program. The control box can be connected with the working panel through a control cable and can also be fixed on the side surface of the working panel, so that the overall space occupation of the invention is reduced.

As shown in fig. 12-13, a through hole is formed at the upper end of the first fixing plate 202, threaded holes are formed around the through hole, the centers of the threaded holes are located on the same circle using the through hole as the center, a long hole is formed at the lower end of the first fixing plate 202, the profiling positioning rod device 201 is installed on the first fixing plate 202 through the long hole, the second fixing plate 207 is installed above the first fixing plate 202, the connecting hole on the second fixing plate is a concentric arc hole, a fixed rotating shaft is arranged on the back of the second fixing plate, the fixed shaft is located at the position of the concentric arc center of the through hole, and the fixed shaft is matched with the circular through hole at the upper end of the first fixing plate, so that the second fixing plate can rotate along the fixed rotating shaft.

The whole work engineering is as follows: after the profiling edge milling machine is adjusted, the start button 303 is pressed, the control circuit enables the air valve of the pressing cylinder 101 to be electrified, the air passage of the pressing cylinder 101 is reversed, and then the piston rod of the pressing cylinder 101 is pushed to descend to compress a product. The control circuit enables an air valve of the pulling air cylinder 108 to be electrified, an air path of the pulling air cylinder 108 is reversed, a piston rod of the pulling air cylinder 108 is further pushed to retract, the connecting handle 213 arranged at one end of the cross beam 205 is pulled, each part on the cross beam 205 is driven to rotate by taking the axis of the upright column 204 with the rack as a circle center, and the movement is stopped until the outer edge of a small shaft rotating at the front end of the profiling positioning rod device 201 is close to the outer edge of the template. Before the template is closed, the control circuit enables the spindle motor 208 to be electrified and started to drive the coupler 209, the spindle 210, the tool holder chuck 211 and the milling cutter 212 to rotate at a high speed; at the same time, the control circuit causes the water pump 402 to start, delivering coolant to cool the milling cutter.

When the front end of the profiling positioning lever device 201 rotates to enable the small shaft to be close to the outer edge of the template, the milling cutter 212 rotating at a high speed above the small shaft also leans against the appearance contour of the casting to be processed. Because the gas can be compressed, a small shaft at the front end of the profiling positioning rod device 201 abuts against the outer edge of the template under the pulling of the pulling cylinder 108 and passively rotates along with the change of the outline of the template, the milling cutter 212 rotating at a high speed synchronously moves along with the moving track of the milling cutter, and a piston rod of the pulling cylinder 108 passively stretches along with the change of the outline of the template, so that redundant parts protruding out of the outer edge of the template are cut. The control circuit starts a motor with a gearbox brake motor 109, drives a belt 110, a belt pulley 111, a rotating shaft 107 and a cam 112 to rotate in a required direction, when a template rotates for a circle, a limit switch 301 is touched by the cam 112, a circle of processing counting is completed, the control circuit enables the brake motor 109 with the gearbox to be powered off, a water pump 402 is powered off, the rotating shaft 107 stops rotating, an air valve of a pulling air cylinder 108 is powered off, an air path of the pulling air cylinder 108 is reversed, a piston rod of the pulling air cylinder 108 extends out, all parts on a cross beam 205 retreat and reset, after a milling cutter 212 rotating at a high speed leaves a casting to be processed, a spindle motor 208 is powered off, the milling cutter 212 stops rotating, then the air valve of a pressing air cylinder 101 is powered off, an air path of the pressing air cylinder 101 is reversed, a piston rod of the pressing air cylinder 101 rises and resets, and a working cycle is completed. The processed casting is taken down, the casting to be processed is placed on the casting to be processed, the next working cycle is carried out, the control circuit is emergently stopped when the emergency stop button 304 and the photoelectric protection switch 302 meet abnormity and danger, the whole circuit control is controlled by a PLC program, the rotating speed of the rotating shaft 107 is controlled by a frequency converter, and the control parameters are set or changed by a touch screen.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an automatic profiling profile modeling edge milling machine, retrieves the subassembly, its characterized in that including installation fixed subassembly, contour machining subassembly, control assembly and cooling: the installation and fixation assembly comprises a down-pressing cylinder, a portal frame, a rotary down-pressing cylinder, a working panel, a structural frame, a flange bearing seat, a rotary shaft, a pulling cylinder, a brake motor with a gearbox, a belt pulley, a cam and a supporting plate, wherein the structural frame comprises four stand columns, a horizontal rectangular frame and two supporting legs; the profiling machining assembly comprises a profiling positioning rod device, a first fixing plate, a lifting regulator, a stand column with a rack, a cross beam, a balance weight, a second fixing plate, a spindle motor, a coupler, a spindle, a cutter handle chuck, a milling cutter, a connecting handle and an installing plate; the device comprises a lifting adjuster, a cross beam, a first fixing plate, a profiling positioning rod device, a main shaft motor, a main shaft and a tool shank chuck, wherein the lifting adjuster is fixedly installed with a supporting plate for installing a fixing component through an installing plate, the lifting adjuster can drive a stand column with a rack to move up and down, the cross beam is installed at the top end of the stand column with the rack, one end of the cross beam is provided with a counterweight, the other end of the cross beam is fixedly installed with the first fixing plate, the upper end of the first fixing plate is provided with a circular through hole, the periphery of the circular through hole is provided with a threaded hole, the circle center of the threaded hole is positioned on the same circle center taking the circle center of the circular through hole as the circle center, the lower end of the first fixing plate is provided with a strip hole, the profiling positioning rod device is installed on the first fixing plate through the strip hole, the second fixing plate is installed above the first fixing plate, the main shaft motor, the main shaft and the tool shank chuck are installed on the second fixing plate, the main shaft motor drives the main shaft motor and the tool shank chuck to rotate through a coupler, a milling cutter is installed on the tool shank chuck, and two sides of the profiling positioning rod device are provided with parallel planes and nuts; the connecting handle is arranged on one side close to the tool holder chuck below the cross beam and connected with a pull ring for pulling a piston rod of the cylinder; the control component is arranged on the outer side of the working panel; the cooling recovery assembly is arranged below the horizontal rectangular frame.

2. The automatic profiling edge milling machine according to claim 1, wherein the control assembly comprises a limit switch, a photoelectric protection switch, a start button, an emergency stop button and a control electric box, wherein the start button and the emergency stop button are arranged on the working panel, and the control electric box is fixedly connected or externally connected to the side surface of the working panel in a lead manner; the limit switch is arranged below the working panel and is matched with the cam to complete the counting of the working period.

3. The automatic profiling edge milling machine according to claim 1 or 2, wherein the cooling recovery assembly comprises a water tank, a water pump and a scrap collecting hopper, rollers are arranged below the water tank, the water pump pumps cooling liquid in the water tank to cool a milling cutter in a working state, the cooling liquid with metal scraps is filtered by a filter screen of the scrap collecting hopper, the cooling liquid enters the water tank again for recycling, and the scrap collecting hopper collects and processes the metal scraps for recycling.

4. The automatic profiling edge milling machine according to claim 3, wherein the connecting holes of the second fixing plate are concentric arc-shaped holes, and a fixed rotating shaft is arranged on the back of the second fixing plate and located at the center of the concentric arc-shaped holes, and the fixed rotating shaft is matched with the circular through hole at the upper end of the first fixing plate, so that the second fixing plate can rotate along the fixed rotating shaft.

5. The automatic profiling edge milling machine according to claim 4, wherein the control device further comprises a control box, a liquid crystal display screen is arranged on the control box, and a control circuit in the control box adopts a PLC program for processing control.

6. The automatic copying and edge milling machine of claim 4, wherein a waterproof bearing is arranged in a front end rod of the copying positioning rod device, and clamp springs are arranged at two ends of the bearing for positioning.

7. The automatic copying and edge milling machine of claim 4, wherein the front end of the copying and positioning device is provided with a bolt bearing or a shaft-mounted bearing.

8. The automatic copying and edge milling machine of claim 4, wherein the front end rod of the copying and positioning device is internally provided with a waterproof bearing, and the outer ring of the bearing protrudes out of the front surface, the left surface and the right surface.